Anyone have any experience with changing cams in crate?

You can make more horse power with any motor with a cam change BUT the cars other parts say where the power band should be-- ok.

This means that if you want to make even more power then before the correct combination of other parts becomes even more critical then when the engine made even less power

You need to list your other parts.

1)Carb

2)Converter stall speed

3)Transmission=4 speed

4)Gear=3.91

5)Vehicles weight

6)Grade of gas you want to run

7)Distributor

Just my 2 cents....:director: If that engine is tuned wrong or is not given the correct other parts to run right, it could be a complete dog.

Let me put that another way.

If you don't have the right combination................
It's kind of like having a huge monster dog for home protection but since he is always left in the cage and never let out to prowl, the big dog can only bark and never bite.